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The world's best gem articles, published weekly.

Most Recent Articles

Diamond Buying and the 4 Cs, Part 4: Assessing Diamond Clarity

Diamond buyers often find assessing clarity challenging. Although inclusions may be difficult to see and identity, they can have a significant impact on a stone’s value, optical performance, and even structural integrity. Learn what determines diamond clarity and how professionals grade this property.

Diamond Buying and the Four Cs, Part 3: Evaluating Diamond Cuts

Cut is perhaps the most complex of the Four Cs of gem grading and is usually taken for granted by consumers. However, diamond cuts greatly affect brilliance and fire as well as how large a stone actually looks. Learn the basic anatomy of a diamond and how professionals grade cut quality.

Diamond Buying and the Four Cs, Part 2: Diamond Color

For most gem buyers, color is probably the most well known of the Four Cs of gem grading. However, diamond color grading can be confusing. Learn about the GIA color grading scale and how fluorescence and metal settings can impact diamond colors, as well as which combinations of color, clarity, cut, and carat to look for.

Diamond Buying and the Four Cs, Part 1: Diamond Carat Weight

Diamond buyers often want to know which of the Four Cs of gem grading is most important — color, clarity, cut, or carat. However, these qualities aren’t as distinct as they seem. Learn more about diamond carat weight and how it affects the other qualities as well as overall value.

An Introduction to Precious Metal Clay Jewelry

Precious metal clay is just what it sounds like: fine silver or gold ground extremely small and suspended in a binder to create clay. For both novice and experienced jewelry makers, working with this material has many advantages.

Smithsonite Value, Price, and Jewelry Information

Smithsonite occurs across the globe, but facetable crystals are extremely rare. These gems can show a wide range range of rich colors but are too soft for most jewelry use. However, high dispersion makes properly faceted smithsonites truly magnificent collector’s pieces.

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